Rim construction for dual tires.



J. C. COLE.

RIM CONSTRUCTION FOR DUAL TIRES.

APPLICATION FILED MAR.Z5.1912.

Patented 24, 1915.

S H E ET I Aug.

2 SHEETS- 11VVENTO@ JZrEra 63 65025),

ATTORNEY) J. C. COLE.

RIM CONSTRUCTION FOR- DUAL TIRES.

APPLICATION FILED MAR. 25. 1912.

1,151,06. Patented 24., 1915.

2 S SHEET 2.

WITNESSES: JZVVENTOR ATTORNEKS JOHN CLARENCE'COLE, F CHICOPEE FALLS, MASSACHUSETTS, ASSIGNOR TO FISK RUBBER COMPANY, OF CHICOPEE FALLS, MASSACHUSETTS, A CORPORATION OF DELAWARE.

RIM CONSTRUCTION FOR DUAL TIRES.

Specification of Letters Patent.

Patented Aug. 241., 1915.

Application filed March 25, 1912. Serial No. 686,003.

. Rim Construction for Dual Tires, of which the following is a specification.

This invention relates'to apparatus for handling dual tires that is, a pair of tires fastened to the same felly. Dual tires are usually used on trucks.

The invention specifically relates to a removable and fixed rim construction cotiperating with the felly to form a convenient and quick means for removing the tires from I the wheel.

The object of the invention is to provide apparatus of the class referred to in which both tires may be removed from the same side of the wheel quickly and with little trouble.

Other objects will appear in the following detailed description and annexed claims.

In the drawings forming part of this applicatiom-Figure 1 is a sectional view taken on the line 1--1 of Fig. 3. Fig. 2 is a sectional view taken on the line 2-2 of Fig. 1. Figs. 3 and 4 are cross sectional views showing two methods to prevent the creeping of the removable rim in an apparatus embodying the invention. Fig. 5 is a plan detail view.

Referring to Fig. 2 of the drawings, 0 is the felly on which the fixed rim 8 is fastened permanently by any suitable method. The two removable rims 'r are adapted to fit on the fixed rim each one carrying a tire, as a and I), bolted, or otherwise fastened, to the removable rims by fastening devices m (see Figs. 1 and 3). In Fig. 2, if the tire I) .be considered as the one next the body of the vehicle, then its removable rim/ris placed on the fixed rim first. The flange on the expanding ring e will hold the inside rim rfrom axial movement in one direction. In order to hold the rim 1' from axial movement in the other direction, a split ring 7 (provided with lugs 71,, engaged by a right and left-handed take-up screw device 10,)

is put on the fixed rim, as indicated. A, flange on the split ring bears against the removable rim. The split ring is preferably let down in a slight depression of the fixed rim and firmly fastened therein by the takeup screw 7:. The outside movable rim is now put on until it lies against an adjacent flange on the split ring 7'. The expanding ring 9 holds the other side of this removable rim. A bolt '0 passing clear through the felly has its head bearingagainst the expanding ring 6, while its nut bears against the expanding ring 9. By turning the nuts to simultaneously take up these expanding rings which have beveled faces cooperating with like faces on the felly, as in the usual construction, the removable rims are held firmly in place.

lVhenever it is desired to remove one or both of the tires a and b from the wheel, they may be removed from the same side as follows: The nuts on the bolts o are loosened to allow expanding ring 9 togo into inoperative position. The tire a with its rim is then removed and the split ring 7 taken off the fixed rim in the same manner as the tire a, after which the tire b, with its rim, is removed from the same side as the tire a was. It is seen from the description that both tires are removed from the one felly with the operator working on one side only of the wheel in a simple and convenient manner.

In Figs. 3, 4:, and 5 of the drawings, two means for preventing any creeping of movement of the removable rim relative to the fixed rim are shown. In Fig. 3, a bolt n passes radially through the folly and fixed rim and engages a thread in the block '0 of the removable rim. A recess in the folly and fixed rim, through which the bolt 11. passes, provides room for a pin and collar t fixed to the bolt to move therewith. This feature is for preventing the loss of the bolt. The bolt will always be ready for use, as indicated at the left hand side of Fig. 3. When it is screwed in place, as shown in the right of Fig. 3, said bolt prevents any While applicant has described hisinvention as specifically applied to the structure shown, it can be applied to other structures than that specifically shown and described.

What I claim is z- 1. In. a structure of the class described, two removable rims, a felly, a'fixed rim I j thereon adapted to support the two removable rims, fastening and positioning means for the removable rims on the fixed rim comprising a split self-expanding ring having a seat on the fixed rim in which it may be contracted and positioned against axial movement, and shoulders on the ring against each of which a removable rim is adapted to bear, means for seating the split ring, and devices for forcing and holding the removable rims against the shoulders of the split ring.

2. The combination of a felly, a flat, fixed rim secured thereto, two removable rims each adapted to fit over the fixed rim, holding devices having beveled bearing faces and flanges movable into position to prevent the removable rims from leaving the fixed rim,

' a spacingtmeans to keep the two removable l'lIIlS in proper spaced relation on the fixed rim, and means to position and seat the spacing means on the fixed rim independ ently of the removable rims, all for the purpose described.

3. A wheel construction adapted for use with dual tires comprising a felly, two .expanding rings each having an outer holding flange, one ring on each side of said felly, bolts passing therethrough to operate both expanding rings into operative and inoperholding means for said rims and means inde- 1 pendent of the removable rims to bind the spacing'ring in position on the felly to cooperate with the expanding rings.

4. The combination of a felly having a fixed rim provided with a plurality of radially arranged openings, a removable rim 7 provided with a plurality of correspondingly arranged openings and adapted to fit "over the fixed rim, and means to prevent creeping of the removable rim comprising permanently mounted radially arranged bolts in the openings of the folly and members threaded on the several bolts arranged to engage the walls of the said openings and be moved, as the bolts are turned, radially into and out of the openings of the removable rim to engage the walls thereof, other means to hold the removable rim from axial I movement, said creep-preventing means and rim-holding means being functionally independent.

' JOHN CLARENCE ooLE.

Witnesses FRANKLIN G. NEAL, HARRY W. BOWEN. 

